Method of and means for heating printed sheets



J. E. DOYLE. METHOD OF AND MEANS FOR HEATING PRINTED SHEETS. APPLICATIONFILED NOV. 11, 1919.

1,405,506. v Patented Feb. 7, 1922.

S HEETSSHEET 1.

.l. E. DOYLE. METHOD OF AND MEANS FOR HEATING PRINTED SHEETS.

APPLICATIONHLED H.0V.- 1-11 1919. 1,405,506.

Patehted Feb. 7, 1922.

3 SHEETS-SHEET 2- J. E.'DOYLE. METHOD OF AND MEANS FOR HEATING PRINTEDSHEETS.

' APPLICATION FILED NOV-l1. 191s.

1 4 5Q50 Patented Feb. 7, 1922.

3 SHEETSSHEET 3.

JA/vrs [I 00m;

' UNITED STATES PATENT OFFICE.

JAMES E. DOYLE, or CLEVELAND, 01110.

, METHOD or Aim MEANS Eon HEATING PRINTED SHEETS.

Specification of Letters Patent.

Patented Feb. 7, 1922.

Application filed November 11, 1919. Serial N6. 337,273.

being herein explained and the bestm'ode in which I have contemplatedapplying that principle, so as: to distinguish it from other inventions.

My invention relates broadly to the means .for and the method ofconditioning paper eithe: before or after printing thereon, and moreparticularly comprehends the application of heat from a glowing orincandescent material so as to more effectively remove staticelectricity and dry the sheet of paper. The drawings exemplify the useof my invention with freshly printed sheets.

I'am well aware that the prior art both" printed and practioed has beensteadily developing during the last decade, as is evidenced by thefollowing U. S. patents Daningburg, 978,704, of December 3, 1910;Mortimer, 1,037,960, of Sept. 10, 1912; Spurrier, 1,050,399, of January14', 1913; Doyle,

1,222,746, of April 17 1917, and my later pending application filedAugust 17, 1918,

Serial No. 250,391.

I have discovered that the most successful application of heat to apaper sheet is by means of a glowing or incandescent body, whileprogressively different areas of the paper sheet are momentarily allowedto nearly or even actually contact, during relative movementtherebetween. Such an incandescent source of heat is best created bymeans of an electric current passed through a suitable resistanceelement which is either moved across the surface of the sheet or elsethe sheet is drawn over the glowing surface. My invention may be adaptedto em ployment in conjunction with any kind of machine which conveyspaper and therefore to various locations on machines used in theprinting industry, for instance, at the delivery end of a cylinderpress, on a substantial level with the diagonal feed rollers over whicha paper sheet is conveyed so that itwill move in engagement with alateral guide preparatory to being folded and in association with whatis known as a Miller feed on a Gordon type of press.

F lgureI is a plan view showing my invention interposed between thedelivery end of a printing press and diagonally arranged feed rollersfor continuing the conveyance of the sheet along a lateral guide towarda folding machine.

Figure II is aside elevation of the same. Figure III is a diagrammaticView. partly in elevation and partly in section, showing a modifiedapplication of my invention at two places to the delivery end of acylinder press.

Figure IV is an enlarged broken plan view of my composite heatingconstruction attached to it.

Figure V is a side elevation of Figure IV.

Figure VI is a still further view of the support having a single heatingelement.

F1 ure VII is a side elevation of Fig ure enlarged plan Figure VIII is asection on line VIIVII of Figure V. Hergesheimer, 897,831, of Sept. 1st,1908;

Figure IX is an enlargement of a section on line IXIX of Fi ure IVlooking in the direction of the in icating arrows.

Figure X is a section on line IXIX of F lgure IV, correspondinglyenlarged.

Flgures XI to XIV inclusive are 'diagrammatic views of the electricwiring 'system showing four different positions of a three-way switch.

Mounted ahead of a feed roller frame 1 are shafts 2 and 3 carrying rolls4 and 5 'respectively, between which a printed paper sheet P isdelivered from a printing press. At the other end of the frame 1 are apair of shafts 6 and 7- supported on a folding machine not shown, andcarrying rolls 8 and 9 respectively. Along the upper edges of the sidesof the frame 1 are plurality of angularly disposed brackets 10 fashionedwith tapped openings 11 in diagonally opposite pairs of which screws 12are placed,

upon which the ends of metal feed rollers 13 are mounted. As appears inFigure I the rollers 13 are necessarily of varying length and are to beassumed as rotating by some cured to the frame extenslon 22 at twoplaces 'These screws have knurled ends 16 enabling manual adjustment ofbrackets 17 carried by a' lateral guide 18 which extends along the leftside of the frame 1 with reference'to the direction of movement of thepaper sheet. The guide 18 has an overhanging upper edge 19 carrying anextension 20 beneath which I the sheets are to move,- .The action of thei a tween the rolls8 and 9 preparatory to berolls 13 tend to move thepaper sheets laterally as indicated by' the dotted lines until theyengage the guide 18 so that theywill all reach the .same prescribedposition be- ;coming folded.

- My composite incandescent heater is sebyjmeans' of bolts 23 which arealso secured to a secondary heater support 24 by means of bolt and nutcombinations 25 as appears in Figure IX. Secured in any suitable manner,as by rivets 27, to a laterally projecting end of the support 24 is aU-shaped receptacle 26 in which aplurality of superimposed porcelainunits are fitted.

The drawings, and particularly Figure IV exemplify four distinctsuperimposed pairs A, B, C and D arranged in a row in the receptacle'26.Inasmuch as the construction is the same for each, only one pair need'bedescribed. Directing attention to Figure X it will be seen that a lowerporcelain mem- 1 ber 28 is provided with four longitudinally extending.channels 29 whilethe upper porcelain member 30 is similarly fashionedwith four longitudinally extending channels 31 which are opened above.At one end of the upper porcelain member 31 are two permanently imbeddedduplex binder posts projecting both above as screws 32 and below tacle26 and to be secured in as perforate brass ends 33 into which latter theend of a copper lead wire 34 is brazed. The lead wire 34 occupies eachof the channels 29 and is electrically connected up through the postswith a resistance coil, 35

-which zig-zags through each of the channels The operation of mycomposite heatingunit is controlled bya pairof three-way switches 39 and40 which receive current through a cable 41. Since nothing is claimedfor the switch construction it need-not be further described. Theoperation is clearly shown in the diagrammatic Figures XI to XIV; FigureXI showing both coils ofi',

\ that all of the four coils A B C and D are cold the firstsnap turn ofthe'switch 39 energizes the coil B and the first snap turn of the switch40 likewise energizes the coil C. The next snapturns of the switches 39and 40 bring on the coils A and D to a glowing heat respectively. 'Thusall of the coils may be off, all the coils may be on or the two middlecoils B and C may alone be heated, which middle localization of heat isfrequently all that is required. a

The modification of Figure III'shows the use of my invention at twoplaces, and the designating numerals for the same parts are each onehundred more than in my Patent No, 1,222,746. Only cursoryidentification will be made of the essential supporting parts'of theprinting press and some other parts which aid in disclosing the methodof applying my invention. Thatrmuch of the frame of the rinting presswhich is shown in Figure III is" designated by the numeral 101 andincludes an extension above the cylinder 102. The bed 103 is shown belowand upon the same a plurality of linking rolls 104 are visible.Rotatably mounted upon the over-hanging portion 101 and a portion of theframe removed forwardly therefrom are a pair of rollers 105 and 106respectively. Those rollers actu ate the conventional type of tapeconveyer 107 the upper portion of which is designed to travel in adirection away from the cylinder. Positioned somewhat farther beyond andin the direction of travel of the conveyer 107 is a deposit table 108.The upper surface of this table is provided near its outer edge with anabutting rail 109. Disposed above the table 108 and inclined upwardlytoward the cylinder are a pair of lateral supporting members 110 whichin cidentally answer as guides for the side edges of the moving papersheets.

A gripping "device whose function consists in carrying paper sheetsforwardly beyond the location of the roller106 will now be described.Generally speaking, it involves a traveling carriage providedwithgripping fingers and a-pair of linked arms capable of reciprocatingit-when actuated in a manner not shown since common to the art. One arm111 is pivotally mounted-- to the frame 112. The free extremityof thearm 111 articulates through the me dium ofa pivot-pin 113 with thesecond arm 114, and the extremity of this arm articulates in a similarmanner through the medium of a pin 115 'withthercarriage- -116-. Thecarriage 116 involves in its construc-' tion forwardly and rearwardldisposed rollers 117 which are adapte to travel upon the members 110Intermediately of plied in a direction oblique with respect to therollers 117 the carriage is provided with the direction of travel ofsaid paper and so an oscillating rod 118 extending transas to becontacted thereby.

versely in the direction which the paper 4, The method of conditioning apaper sheet is to follow. The rod'118 supports sheet after printingthereon, which cona plurality of gripping fingers 119 which sists inmoving said sheet diagonally across are in Fig. III shown in theirelevated pothe line of extent of a glowing surface.

supported during transit.

sition. This position they assume automati- 5. The method ofconditioning a sheet cally and in a manner also well known to afterprinting thereon, which consists in such as are conversant with the art,when conveying said sheet in direction, diagonally the carriage isreturning, as indicated by across a line of incandescence.

the arrow, in the direction of the conveyer 6; The combination withmeans for con- 107. The carriage 116 is provided with a Veying a papersheet, means for folding the depending bracket 120 which supports a.same and interjacent means for causing one rod 121 extending between themembers edge of said sheet to follow a given line, of 110. Secured alongthe rearward portion an incandescent surface arranged in oppoof the rod121 and fixedly maintained in an sition to said edge aligningmeansinclined position are a plurality of alined 7. The combination witha roller for conarms 122. These arms constitute a movable veylng a papersheet, of a heater arranged table upon which the sheet of paper P is atn angle to the axis said roller.

8. The combination with a series of roller" At other points along therod 121 I su for conveying a paper sheet and a wal t, th Structure H bodi my presraised above the upper surface of said roll ent invention so asto in turn osition it erS n extending at an angle to the axes justbeyond and at a somewhat higher level reof, of a heater extending at anangle than the top surfaces of the arms 122. to the e of s id rollers.Such upporting agencies onsist of uit- 9. The CQIIIblIlfltiOIl With aseries 0f IOllGIS bl Clamps 123 It ill b notiged l i for conveylng apaper sheet and a wall raised Fi 111 th t I h shown my t f above theupper surface of said rollers and i d t h t t th d fi d extending at anangle to the axes thereof, of i t h d f th t li Carriage ith anlncandescent member extending at an reference to the direction ofdelivery of the angle t0 the f e Of aid rollers and in con sheet, inwhich location the sheets pass over tflctual P L y o said moving sheet.the heater, instead of the heater being Me for h ating printed sheetsdrawn b k under th h t comprlsing the combination with a conveyer, I 1 iof a series of electrical units arranged end 1. The method ofconditioning freshly 611d across the route travel of said i t d paper,whi h i t i conveying sheet upon said conveyors, and means for the sheetand causing an incandescent heat e g ing ne or more of said unitswhereto be applied thereto along a line extending by to enablerestriction of the application of diagonally within the mean plane ofthe heat within lateral limits. passing portion of said sheet. e 11.Means for heating printed sheets com- 2. The method of conditioningfreshly prising the combination with means for movprinted paper, whichconsists in conveying ing a sheet, of a series of electrical units thesheet and causing an incandescent heat arranged in a row extending at anangle to to be applied thereagainst along an oblique the direction oftravel of said sheet at the 7 line within the mean plane of the passingmoment of its closest approach to said units portion with reference tothe direction of and a switch travel of said sheet. I

3. The method of conditioning freshly printed paper, which-consistsinconveying the sheet in a given direction and opposing lineal heatthereacross, such heat beingapcontrol for energizing differentcombinations of said units whereby the application of heat may berestricted to a predetermined area of the passing sheet.

Signed by me, this 5th day of Nov., 1919.

- JAMES E. DOYLE.

